Home / 14,257.14-21,380.50-4,258.90

Finding the Fourth Proportional to 14,257.14, 21,380.50 and 4,258.90

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Solution

The fourth proportional to 14,257.14, 21,380.50 and 4,258.90 is: 6,386.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,257.14 : 21,380.50 = 4,258.90 : x
  2. Step 2: Convert to fraction form
    14,257.14/21,380.50 = 4,258.90/x
  3. Step 3: Cross multiply
    14,257.14x = 21,380.50 × 4,258.90
  4. Step 4: Simplify right side
    14,257.14x = 91,057,411.45
  5. Step 5: Solve for x
    x = 91,057,411.45/14,257.14
  6. Step 6: Final answer
    x = 6,386.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.